In rural and marginal landscapes, the architectural heritage carries an inestimable value. It distinguishes these places from the standardization of contemporary society and it makes them authentic and rooted in the territory. Investigating the real potential of building heritage and understanding what actions should be taken to raise it to the needs of contemporary society is one way to preserve this authenticity. The article presents an innovative multidisciplinary tool, based on GIS methodology, for rapid evaluation of the features of traditional rural architecture. With it, it is possible to carry out a complex analysis, by considering architectural, energy and structural items. It can also guide the design activities in order to optimize the revitalization actions, emphasizing the holistic approach. The potentiality of this procedure will be shown for a test site, namely, the Isle of Filicudi (Aeolian Islands, Sicily, Italy).